Mesonic Form Factors
نویسندگان
چکیده
The pion electromagnetic form factor is often considered a good observable for studying the relative accuracy of perturbative and nonperturbative descriptions of QCD as the energy scale varies. It is hoped that because the pion is the lightest and simplest hadron that perturbative descriptions will remain accurate at lower energy scales than predictions for heavier and more complicated hadrons, e.g. the nucleon. At very low energies, the charged pion moves moves in an electromagnetic field like a point particle with one unit of electric charge. This allows us to fix the overall normalization of the form factor
منابع مشابه
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